Zhongyu Pei (裴中煜)

Security reseacher, Orion Security Lab, Alibaba Inc.
Building 9, Block 4, Wangjing East Park, Chaoyang District, Beijing
brieflyx # gmail.com
CTFer in #Redbud#, #Bluelotus# and #Tea-Devliverers#


  • B.S. degree, Computer Science and Technology, Tsinghua University. 2016
  • M.S. degree, Computer Science and Technology, Tsinghua University. 2019

Research Interests

  • Fuzzing
  • IoT Security
  • Binary analysis / Symbolic execution

CTF Career

I mainly work on pwn / binary challenges. Kernel, virtualization and low-level attack are my interest. I collect interesting pwn challenges in my github repo.

I’d like to write technical posts and ctf write-ups on my blog.



  1. CollAFL: Path Sensitive Fuzzing
    Shuitao Gan, Chao Zhang*, Xiaojun Qin, Xuwen Tu, Kang Li, Zhongyu Pei, Zuoning Chen
    In IEEE Security & Privacy 2018 (IEEE S&P’18), San Francisco, CA, May 2018


  1. TAICHI: Transform Your Secret Exploits Into Mine From a Victim’s Perspective
    Zhongyu Pei, Xingman Chen, Songtao Yang, Haixin Duan, Chao Zhang*
    Accepted by Transactions on Dependable and Secure Computing (TDSC), 2022